Why Are My Guava Leaves Yellow – Dealing With Yellowing Guava Leaves
By: Liz Baessler
Guava trees are wonderful specimens to have in your garden or backyard to give you a real tropical flavor. Just like any fruit tree, guavas have a big payoff but a bigger investment, which means it can be disheartening or downright terrifying when something seems to go wrong. One especially common complaint is guava leaves turning yellow. Keep reading to learn more about recognizing and treating yellow leaves on a guava tree.
Why are My Guava Leaves Yellow?
Oftentimes, when a gardener reports yellowing guava leaves, it’s on a tree that’s being grown in a pot and overwintered indoors. Guava trees can’t really tolerate temperatures below freezing, which means that gardeners in most zones have to bring them inside for the colder months. This is the likeliest reason for yellow leaves on a guava tree – a combination of different light, water, and humidity.
It’s especially common for this yellowing to happen in the spring, at the point when the tree has spent the most time indoors. Usually, the yellowing will begin at the lowest leaves and work its way up. Some may even fall off. Luckily, guava trees are very resilient. If your tree seems to be yellowing over the winter, the best thing to do is wait for warmer weather. Once it’s back outside, it ought to perk up.
Other Causes for Yellow Guava Leaves
Of course, not all yellow leaves on a guava tree are due to overwintering. If your tree is outdoors in the heat, there are a number of other possible causes. Most plants will turn yellow as a sign of stress – if the weather is exceptionally hot or cool and/or wet or dry, this could be the culprit.
There is also a chance that the yellowing leaves are a symptom of nematodes. There are a number of nematodes that attack guava tree roots. To discourage nematode infestations, mulch your guava trees and pay special attention to fertilizer and water. And always avoid planting where there is a known nematode infestation.
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Read more about Guava Trees
Yellow Leaves on an Orange Tree After a Freeze
Fragrant orange blossoms and ripe, juicy fruit seem linked to sunny days without end, but orange trees (Citrus sinensis) are hardier than they seem. Many cultivars can live through a light frost without any problems. While a deep or prolonged frost can damage your orange tree, yellowing leaves are not likely a symptom of frost damage. The usual suspects in this case are over-watering or nutrient deficiency.
Why Are My Money Tree Leaves Falling Off or Turning Yellow?
Discolored leaves or lost leaves on a money tree plant could be the result of several problems.
It is important to analyze the current situation and the growing conditions for your plant.
That way, you can either pinpoint a particular problem or rule some out. Also, don’t forget that there may be more than one issue to blame here. Don’t assume that you have fixed the color or loss of leaves on the first try.
Key Factors To Consider When Diagnosing Your Plant
- The moisture levels of your plant
- The light levels in the room
- The presence of any pests
- The presence of any new growth on the plant
Scarlet Mite: Brevipalpus phoenicus (Tenuipalpidae: Acari)
The scarlet mite is also one of the pests of guava. Mite usually lays eggs on guava fruit stalks, calyx, and leaves. The parasitic phase is completed within 22 days.
Other Host Plants
Both nymphs and adults of pest suck the cell sap from fruits, which leads to browning of nodal regions and formation of brown patches on fruit calyx and surface. As the infestation progresses, the entire surface of guava fruits will split.
- Gather all damaged plant parts and burn
- Apply timely preventive measures
- Prune regularly to reduce dense canopy
- Introduce natural enemies of scarlet mite
- Spray insecticide